Service and Start-Up Options
Fixing Internal Memory Problems
The H8000FW uses solid-state memory circuits to store programs, the routing configuration, and setup. These circuits use a long-life battery to keep them alive while the H8000FW is turned off. Whenever the computer in the H8000FW updates that memory, it performs an operation called a "checksum" and stores the result. A checksum is a calculation whose result characterizes what is stored in memory. A second run of the checksum calculation should result in the same characterization, if the memory hasn’t changed. When the H8000FW is turned on, it runs a checksum calculation on the memory and compares the result against the stored result. If there is a discrepancy, the H8000FW reports an error.
In the unlikely event that an "internal memory checksum error" occurs, there may be a critical problem with what is stored in memory. The service function fix internal on the service
menu page in the SETUP area will remove the checksum error by forcing the new checksum result to be saved. This will not get rid of the corruption in the data, however.
After pressing the SELECT key on the above menu page, you will arrive at the menu page shown to the right. If you want to go ahead with the procedure, press the <yes> SOFT KEY. Otherwise, press the <no> SOFT KEY.
Now, you can assume that the "checksum error" was no big deal, get a cup of coffee, and go back to work (not advised), OR you can assume something nasty is going on and take
immediate action (advised). Assuming you take the latter (smart) course of action, the first thing you’ll want to do is to save all of your important programs, routing configurations, and setups to a card (see Copying Programs on page 129) or to an external
storage device (see Dumping Data and Receiving Data Dumps on page 140 ).
Then return to the service menu page in the SETUP area.
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Highlight format internal and press the SELECT key. You’ll arrive at the screen shown to the right. Pressing the <yes> SOFT KEY will delete everything you have stored in the
H8000FW, returning it to the state in which it left the factory. Do not do this lightly. Pressing the <no> SOFT KEY will abort the mission.
Internal memory "checksum errors" should occur infrequently, if ever. Should they occur more frequently than "almost never," contact Eventide, as something is definitely amiss.
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Fixing PCMCIA SRAM Memory Card Problems
Note - the following only applies to PCMCIA static RAM memory cards.
If a Memory Card "checksum error" occurs, your Memory Card has been corrupted in some way. It is possible that there is no loss of data. Memory Cards can be corrupted by static
electricity, shock, a loose battery, older siblings, a weak battery, incorrect insertion into the H8000FW, use in some other computer, or a myriad of other causes. As a result, a Memory Card "checksum error" should not immediately send your heart into your mouth (although an internal checksum error probably should). Regardless of whether you are concerned about a Memory Card "checksum error" or not, you should "fix" the checksum.
Go to the service menu page in the SETUP area.
Highlight fix card and press the SELECT key. Press the <yes> SOFT KEY to force the new checksum result to be saved. If data is in fact corrupted, this will not fix it. Press the <no>
to abort.
If you are worried about the contents of the Memory Card, you should either dump the contents of the memory card to an external storage device
Dumps on page 140) OR copy all valuable internal programs and routing configurations to a different Memory Card, copy the faulty Memory Card’s programs and routing configurations to internal memory and then to another Memory Card (see Copying Programs
on page 129).
Finally, return to the service menu page in the SETUP area.
Highlight format card and press the SELECT key. Pressing the <yes> SOFT KEY will erase the contents of the Memory Card and reformat it. Press the <no> SOFT KEY to abort.
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You might also put a label on the card (using adhesive tape, indelible marker, etc.) indicating the date and that a problem occurred. Keep track of this kind of problem and make multiple backup copies. Have you been introduced to Mr. Murphy? He’s got this law that says . . .
Changing the Internal Battery
A small button-type battery is mounted internally and powers the H8000FW's memory when the power is off. This should last about five years before it needs to be changed, longer if the H8000FW is left powered up much of the time. The number of hours for which the unit has been operating, powered and unpowered, can be found under SETUP/service/information.
This battery should be replaced by a qualified technician only since it must be replaced when the H8000FW is powered up in order to preserve the internal memory contents. Contact your Eventide Service Center to have this battery replaced.
IMPORTANT SAFETY NOTICE FOR LITHIUM BATTERY:
Danger of explosion if battery is incorrectly replaced.
Replace only with same or equivalent type recommended by manufacturer.
Dispose of battery according to manufacturer's instructions.
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